<template>
  <el-dialog v-model="dialogVisible" :title="titleMap[type-1]" :width="type==1?680:460" destroy-on-close append-to-body @closed="$emit('closed')">

    <template v-if="type==1">
      <div class="sc-user-select">
        <div class="sc-user-select__left">
          <div class="sc-user-select__search">
            <el-input v-model="keyword" prefix-icon="el-icon-search" placeholder="搜索成员">
              <template #append>
                <el-button icon="el-icon-search" @click="search"></el-button>
              </template>
            </el-input>
          </div>
          <div class="sc-user-select__select">
            <div class="sc-user-select__tree" v-loading="showGrouploading">
              <el-scrollbar>
                <el-tree class="menu" ref="groupTree" :data="group" :node-key="groupProps.key" :props="groupProps" highlight-current :expand-on-click-node="false" :current-node-key="groupId" @node-click="groupClick"/>
              </el-scrollbar>
            </div>
            <div class="sc-user-select__user" v-loading="showUserloading">
              <div class="sc-user-select__user__list">
                <el-scrollbar ref="userScrollbar">
                  <el-tree class="menu" ref="userTree" :data="user" :node-key="userProps.key" :props="userProps" :default-checked-keys="selectedIds" show-checkbox check-on-click-node @check-change="userClick"></el-tree>
                </el-scrollbar>
              </div>
              <footer>
                <el-pagination background layout="prev,next" small :total="total" :page-size="pageSize" v-model:currentPage="currentPage" @current-change="paginationChange"></el-pagination>
              </footer>
            </div>
          </div>
        </div>
        <div class="sc-user-select__toicon"><el-icon><el-icon-arrow-right /></el-icon></div>
        <div class="sc-user-select__selected">
          <header>已选 ({{selected.length}})</header>
          <ul>
            <el-scrollbar>
              <li v-for="(item, index) in selected" :key="item.id">
                <span class="name">
                  <el-avatar >{{item.name.substring(0,1)}}</el-avatar>
                  <label>{{item.name}}</label>
                </span>
                <span class="delete">
                  <el-button type="danger" icon="el-icon-delete" circle size="small" @click="deleteSelected(index)"></el-button>
                </span>
              </li>
            </el-scrollbar>
          </ul>
        </div>
      </div>
    </template>

    <template v-if="type==2">
      <div class="sc-user-select sc-user-select-role">
        <div class="sc-user-select__left">
          <div class="sc-user-select__select">
            <div class="sc-user-select__tree" v-loading="showGrouploading">
              <el-scrollbar>
                <el-tree class="menu" ref="groupTree" :data="role" :node-key="roleProps.key" :props="roleProps" show-checkbox check-strictly check-on-click-node :expand-on-click-node="false" :default-checked-keys="selectedIds" @check-change="roleClick"/>
              </el-scrollbar>
            </div>
          </div>
        </div>
        <div class="sc-user-select__toicon"><el-icon><el-icon-arrow-right /></el-icon></div>
        <div class="sc-user-select__selected">
          <header>已选 ({{selected.length}})</header>
          <ul>
            <el-scrollbar>
              <li v-for="(item, index) in selected" :key="item.id">
                <span class="name">
                  <label>{{item.name}}</label>
                </span>
                <span class="delete">
                  <el-button type="danger" icon="el-icon-delete" circle size="small" @click="deleteSelected(index)"></el-button>
                </span>
              </li>
            </el-scrollbar>
          </ul>
        </div>
      </div>
    </template>


    <template #footer>
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="save">确 认</el-button>
    </template>
  </el-dialog>
</template>

<script>
  import config from "@/config/workflow";

  export default {
    props: {
      modelValue: { type: Boolean, default: false }
    },
    data() {
      return {
        groupProps: config.group.props,
        userProps: config.user.props,
        roleProps: config.role.props,

        titleMap: ['人员选择', '角色选择'],
        dialogVisible: false,
        showGrouploading: false,
        showUserloading: false,
        keyword: '',
        groupId: '',
        pageSize: config.user.pageSize,
        total: 0,
        currentPage: 1,
        group: [],
        user: [],
        role: [],
        type: 1,
        selected: [],
        value: []
      }
    },
    computed: {
      selectedIds(){
        return this.selected.map(t => t.id)
      }
    },
    mounted() {

    },
    methods: {
      //打开赋值
      open(type, data){
        this.type = type
        this.value = data||[]
        this.selected = JSON.parse(JSON.stringify(data||[]))
        this.dialogVisible = true

        if(this.type==1){
          this.getGroup()
          this.getUser()
        }else if(this.type==2){
          this.getRole()
        }

      },
      //获取组织
      async getGroup(){
        this.showGrouploading = true;
        var res = await config.group.apiObj.get();
        this.showGrouploading = false;
        var allNode = {[config.group.props.key]: '', [config.group.props.label]: '所有'}
        res.data.unshift(allNode);
        this.group = config.group.parseData(res).rows
      },
      //获取用户
      async getUser(){
        this.showUserloading = true;
        var params = {
          [config.user.request.keyword]: this.keyword || null,
          [config.user.request.groupId]: this.groupId || null,
          [config.user.request.page]: this.currentPage,
          [config.user.request.pageSize]: this.pageSize
        }
        var res = await config.user.apiObj.get(params);
        this.showUserloading = false;
        this.user =  config.user.parseData(res).rows;
        this.total = config.user.parseData(res).total || 0;
        this.$refs.userScrollbar.setScrollTop(0)
      },
      //获取角色
      async getRole(){
        this.showGrouploading = true;
        var res = await config.role.apiObj.get();
        this.showGrouploading = false;
        this.role = config.role.parseData(res).rows
      },
      //组织点击
      groupClick(data){
        this.keyword = ''
        this.currentPage = 1
        this.groupId = data[config.group.props.key]
        this.getUser()
      },
      //用户点击
      userClick(data, checked){
        if(checked){
          this.selected.push({
            id: data[config.user.props.key],
            name: data[config.user.props.label]
          })
        }else{
          this.selected = this.selected.filter(item => item.id != data[config.user.props.key])
        }
      },
      //用户分页点击
      paginationChange(){
        this.getUser()
      },
      //用户搜索
      search(){
        this.groupId = ''
        this.$refs.groupTree.setCurrentKey(this.groupId)
        this.currentPage = 1
        this.getUser()
      },
      //删除已选
      deleteSelected(index){
        this.selected.splice(index,1);
        if(this.type==1){
          this.$refs.userTree.setCheckedKeys(this.selectedIds)
        }else if(this.type==2){
          this.$refs.groupTree.setCheckedKeys(this.selectedIds)
        }
      },
      //角色点击
      roleClick(data, checked){
        if(checked){
          this.selected.push({
            id: data[config.role.props.key],
            name: data[config.role.props.label]
          })
        }else{
          this.selected = this.selected.filter(item => item.id != data[config.role.props.key])
        }
      },
      //提交保存
      save(){
        this.value.splice(0,this.value.length);
        this.selected.map(item => {
          this.value.push(item)
        })
        this.dialogVisible = false
      }
    }
  }
</script>

<style scoped>
  .sc-user-select {display: flex;}
  .sc-user-select__left {width: 400px;}
  .sc-user-select__right {flex: 1;}

  .sc-user-select__search {padding-bottom:10px;}

  .sc-user-select__select {display: flex;border: 1px solid var(--el-border-color-light);background: var(--el-color-white);}
  .sc-user-select__tree {width: 200px;height:300px;border-right: 1px solid var(--el-border-color-light);}
  .sc-user-select__user {width: 200px;height:300px;display: flex;flex-direction: column;}
  .sc-user-select__user__list {flex: 1;overflow: auto;}
  .sc-user-select__user footer {height:36px;padding-top:5px;border-top: 1px solid var(--el-border-color-light);}

  .sc-user-select__toicon {display: flex;justify-content: center;align-items: center;margin:0 10px;}
  .sc-user-select__toicon i {display: flex;justify-content: center;align-items: center;background: #ccc;width: 20px;height: 20px;text-align: center;line-height: 20px;border-radius:50%;color: #fff;}

  .sc-user-select__selected {height:345px;width: 200px;border: 1px solid var(--el-border-color-light);background: var(--el-color-white);}
  .sc-user-select__selected header {height:43px;line-height: 43px;border-bottom: 1px solid var(--el-border-color-light);padding:0 15px;font-size: 12px;}
  .sc-user-select__selected ul {height:300px;overflow: auto;}
  .sc-user-select__selected li {display: flex;align-items: center;justify-content: space-between;padding:5px 5px 5px 15px;height:38px;}
  .sc-user-select__selected li .name {display: flex;align-items: center;}
  .sc-user-select__selected li .name .el-avatar {background: #409eff;margin-right: 10px;}
  .sc-user-select__selected li .name label {}
  .sc-user-select__selected li .delete {display: none;}
  .sc-user-select__selected li:hover {background: var(--el-color-primary-light-9);}
  .sc-user-select__selected li:hover .delete {display: inline-block;}

  .sc-user-select-role .sc-user-select__left {width: 200px;}
  .sc-user-select-role .sc-user-select__tree {border: none;height: 343px;}
  .sc-user-select-role .sc-user-select__selected {}

  [data-theme='dark'] .sc-user-select__selected li:hover {background: rgba(0, 0, 0, 0.2);}
  [data-theme='dark'] .sc-user-select__toicon i {background: #383838;}
</style>
